Here's the threat model. A president of the united states calls up his friend in Netflix "Hey can I get a list of all my enemies in my admin, in congress, in courts and the military". Said friend says "sure thing I'll just run some sql queries for who watched movie x, y, z and hand you the results".

Now said president discovers that a few people he considered trustworthy seem to be secretly having qualms about his increasing powergrabs. He manufactures a few roadblocks in their careers and within a year and a half they have all been cleaned out.

With them gone he is able to go ever further and more brazen. One day he proclaims himself dictator, and all branches cheer and celebrate.